Home › Washers › LG › Sud

LG Washer Sud Error Code

Too many suds. Here is what it means and how to clear it, easiest fix first.

Sud
Easy DIY fix

The washer detected too much foam in the drum, almost always from using too much detergent or a non-HE detergent. It runs extra steps to break the suds down, which can add about two hours, and it may stop spinning to keep suds from leaking.

Shown on front-load, top-load and wash tower models; the display may read SUD.

Safety first: unplug the washer (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix LG Sud

  1. Let the washer finish

    Allow the suds-reducing routine to run; the code typically clears on its own once the foam is gone. Run an extra rinse if suds remain.

  2. Measure detergent correctly

    Use only detergent labeled HE and follow the dosing line, or use a little less for small or lightly soiled loads. Highly concentrated detergents need even less.

  3. Clean out residue

    Run a Tub Clean cycle to flush leftover detergent from the drum and dispenser.

When to call a technician

If you see the code even with correct detergent amounts, have a technician check the pressure sensor and drain system.

Other LG washer codes

Frequently asked questions

What does Sud mean on a LG washer?

The washer detected too much foam in the drum, almost always from using too much detergent or a non-HE detergent. It runs extra steps to break the suds down, which can add about two hours, and it may stop spinning to keep suds from leaking.

Can I fix LG Sud myself?

Usually, yes. Most Sud problems clear with simple checks you can do at home. Start with the first step above: let the washer finish.

What if Sud keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when Sud appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.